Dual-purpose dumbbell

ABSTRACT

A dual-purpose dumbbell has a bar, two weights and two adjusting assemblies. The bar has two ends. The two weights are mounted rotatably respectively on the ends of the bar and can be configured longitudinally or transversely relative to the bar. The adjusting assemblies are mounted respectively between the ends of the bar and the weights to allow the weights rotated relative to the bar. When the weights are configured longitudinally, the dual-purpose dumbbell is used as a dumbbell or a weighted baton. When the weights of the dual-purpose dumbbell are configured transversely, the dual-purpose dumbbell can be used as a handle for doing pushups. Since the dual-purpose dumbbell can be used as a dumbbell, a weighted baton and a handle for use when doing pushups, less space is required to store exercise equipment and less cost is incurred to procure the exercise equipment.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a dual-purpose dumbbell and especiallyto a dual-purpose dumbbell that can be used in different exercises.

2. Description of the Prior Arts

Most sports appliances have a single use. If a person wants to dodifferent exercises, different sports appliances are required, whichcost more money and requires more space for storage.

To overcome the shortcomings, the present invention provides adual-purpose dumbbell to mitigate or obviate the aforementionedproblems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a dual-purposedumbbell that can be used as a conventional weight or a handle forpushups.

A dual-purpose dumbbell in accordance with the present invention has abar, two weights and two adjusting assemblies. The bar has two ends. Thetwo weights are mounted rotatably respectively on the ends of the barand can be configured longitudinally or transversely relative to thebar. The adjusting assemblies are mounted respectively between the endsof the bar and the weights to allow the weights rotated relative to thebar. When the weights are configured longitudinally, the dual-purposedumbbell is used as a conventional dumbbell or a weighted baton. Whenthe weights of the dual-purpose dumbbell are configured transversely,the dual-purpose dumbbell can be used as a handle for doing pushups.Since the dual-purpose dumbbell can be used as a conventional dumbbell,a weighted baton and a handle for use when doing pushups, less space isrequired to store exercise equipment and less cost is incurred toprocure the exercise equipment.

Other objectives, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective of a dual-purpose dumbbell in accordance withthe present invention;

FIG. 2 is an exploded perspective view of the dual-purpose dumbbell inFIG. 1;

FIG. 3 is a side view in partial section of the dual-purpose dumbbell inFIG. 1;

FIG. 4 is an operational side view in partial section of thedual-purpose dumbbell in FIG. 1 with one weight adjusted transversely tothe bar;

FIG. 5 is operational side view in partial section of a dual-purposedumbbell in FIG. 1 converted to a handle for use during pushups;

FIG. 6 is another perspective view of the sport appliance of dualpurpose in FIG. 1; and

FIG. 7 is an operational perspective of the dual-purpose dumbbell inFIG. 1 used during pushups.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIG. 1, the dual-purpose dumbbell in accordance withthe present invention is selectively used as a weight and a handle usedwhen performing pushups and comprises a bar (10), two weights (20), twoadjusting assemblies and an optional grip (30).

With further reference to FIG. 2, the bar (10) has two ends (11) and mayhave an outer surface (12) and two through holes (13).

With further reference to FIG. 3, each end (11) may have an inclinedsurface. Each inclined surface has a center and a locking recess (111).The locking recess (111) is non-circular, is geometric with a 90°increment and is formed at the center of the end (11).

The outer surface (12) may be cylindrical.

The through holes (13) are formed perpendicularly respectively throughthe centers of the inclined surfaces of the ends (11) and communicatewith the outer surface (12) of the bar (10). Each through hole (13) hasa countersink (131). The countersink (131) communicates with the outersurface (12) of the bar (10).

The weights (20) are connected adjustably respectively to the ends (11)of the bar (10). Each weight (20) may have a proximal end (21), a distalend (22), a locking protrusion (23), a fastening hole (24) and a foot(27).

The proximal end (21) is inclined, corresponds to the inclined surfaceof the end (11) of the bar (10) and has a center.

The distal end (22) has an optional recess.

With further reference to FIGS. 4 and 5, the locking protrusion (23) isformed concentrically on and protrudes from the proximal end (21) andcorresponds to and selectively engages the locking recess (111) to holdthe weight (20) in a longitudinal or transverse position relative to thebar (10).

The fastening hole (24) is formed concentrically in the lockingprotrusion and may be threaded.

With further reference to FIGS. 6 and 7, the foot (27) is a pliable,non-skid pad, is attached to the distal end (22) of the weight (20),keeps the dual-purpose dumbbell from slipping when being used as ahandle to perform pushups and is mounted in the recess in the distal end(22) of the weight (20).

The adjusting assemblies are mounted respectively between the ends ofthe bar (10) and the weights (20) to allow the weights (20) beingadjusted relative to the bar (10). Each adjusting assembly may have afastener (25) and a biasing element (26).

The fastener (25) is mounted through the corresponding through hole (13)in the bar (10), connects to the fastening hole (24) in thecorresponding weight (20), has an enlarged head and may be a bolt.

The biasing element (26) is mounted around the fastener (25) between thebar (10) and the enlarged head of the fastener (25), pulls the proximalend (21) of the corresponding weight (20) against the inclined surfaceof the corresponding end (11) of the bar (10) and may be a spring.

The grip (30) is a pliable sheath, is mounted around the bar (10) andhas a non-skid outer surface.

The dual-purpose dumbbell as described can be used as a dumbbell, aweighted baton and a handle for use when doing pushups. Consequently,less space is required to store exercise equipment and less cost isincurred to procure the exercise equipment.

Even though numerous characteristics and advantages of the presentinvention have been set forth in the foregoing description, togetherwith details of the structure and features of the invention, thedisclosure is illustrative only. Changes may be made in the details,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

1. A dual-purpose dumbbell comprising: a bar having two ends; twoweights being connected adjustably respectively to the ends of the bar;and two adjusting assemblies being mounted respectively between the endsof the bar and the weights to allow the weights being adjusted relativeto the bar.
 2. The dual-purpose dumbbell as claimed in claim 1, whereineach end of the bar has an inclined surface having a center; and alocking recess being non-circular, being geometric with a 90° incrementand being formed at the center of the end; the bar further has an outersurface; and two through holes being formed perpendicularly respectivelythrough the centers of the inclined surfaces of the ends andcommunicating with the outer surface of the bar, each through holehaving a countersink communicating with the outer surface; each weightfurther has a proximal end being inclined, corresponding to the inclinedsurface of a corresponding end of the bar and having a center; a distalend; a locking protrusion being formed concentrically on and protrudingfrom the proximal end and corresponding to and selectively engaging thelocking recess of a corresponding end of the bar; a fastening hole beingformed concentrically in the locking protrusion; and a foot being apliable, non-skid pad and being attached to the distal end of theweight; and each adjusting assembly has a fastener being mounted throughone of the through holes in the bar, connecting to the fastening hole ina corresponding weight and having an enlarged head; and a biasingelement being mounted around the fastener between the bar and theenlarged head of the fastener and pulling the proximal end of thecorresponding weight against the inclined surface of a corresponding endof the bar.
 3. The dual-purpose dumbbell as claimed in claim 2, whereinthe outer surface of the bar is cylindrical.
 4. The dual-purposedumbbell as claimed in claim 2, wherein the distal end of each weighthas a recess; and the foot is mounted in the recess.
 5. The dual-purposedumbbell as claimed in claim 3, wherein the distal end of each weighthas a recess; and the foot is mounted in the recess.
 6. The dual-purposedumbbell as claimed in claim 2, wherein the fastening holes of theweights are threaded.
 7. The dual-purpose dumbbell as claimed in claim5, wherein the fastening holes of the weights are threaded.
 8. Thedual-purpose dumbbell as claimed in claim 2, wherein the fasteners arebolts.
 9. The dual-purpose dumbbell as claimed in claim 7, wherein thefasteners are bolts.
 10. The dual-purpose dumbbell as claimed in claim2, wherein the biasing elements are springs.
 11. The dual-purposedumbbell as claimed in claim 9, wherein the biasing elements aresprings.
 12. The dual-purpose dumbbell as claimed in claim 1 furthercomprising a grip being a pliable sheath, being mounted around the barand having a non-skid outer surface.
 13. The dual-purpose dumbbell asclaimed in claim 11 further comprising a grip being a pliable sheath,being mounted around the bar and having a non-skid outer surface.